<table class="texreg" style="margin: 10px auto;border-collapse: collapse;border-spacing: 0px;caption-side: bottom;color: #000000;border-top: 2px solid #000000;">
<caption>Statistical models</caption>
<thead>
<tr>
<th style="padding-left: 5px;padding-right: 5px;">&nbsp;</th>
<th style="padding-left: 5px;padding-right: 5px;">Model 1</th>
<th style="padding-left: 5px;padding-right: 5px;">Model 2</th>
<th style="padding-left: 5px;padding-right: 5px;">Model 3</th>
</tr>
</thead>
<tbody>
<tr style="border-top: 1px solid #000000;">
<td style="padding-left: 5px;padding-right: 5px;">(Intercept)</td>
<td style="padding-left: 5px;padding-right: 5px;">4.04<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">3.37<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">3.48<sup>&#42;&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.49)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.80)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.81)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">gen</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.01</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.03</td>
<td style="padding-left: 5px;padding-right: 5px;">0.03</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.34)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.42)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.41)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">age</td>
<td style="padding-left: 5px;padding-right: 5px;">0.02</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.41</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.44</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.36)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.47)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.45)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">edu</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.16</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.05</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.05</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.34)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.42)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.41)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">com</td>
<td style="padding-left: 5px;padding-right: 5px;">0.42</td>
<td style="padding-left: 5px;padding-right: 5px;">0.47</td>
<td style="padding-left: 5px;padding-right: 5px;">0.11</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.65)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.88)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.88)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">cot</td>
<td style="padding-left: 5px;padding-right: 5px;">-2.17<sup>&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">-1.23</td>
<td style="padding-left: 5px;padding-right: 5px;">-1.44</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.88)</td>
<td style="padding-left: 5px;padding-right: 5px;">(1.03)</td>
<td style="padding-left: 5px;padding-right: 5px;">(1.03)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">comena</td>
<td style="padding-left: 5px;padding-right: 5px;">0.07</td>
<td style="padding-left: 5px;padding-right: 5px;">0.13</td>
<td style="padding-left: 5px;padding-right: 5px;">0.09</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.60)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.69)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.66)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">RelSv</td>
<td style="padding-left: 5px;padding-right: 5px;">0.07</td>
<td style="padding-left: 5px;padding-right: 5px;">0.13</td>
<td style="padding-left: 5px;padding-right: 5px;">0.17</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.14)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.18)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.17)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">RelDn</td>
<td style="padding-left: 5px;padding-right: 5px;">2.92<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">1.94<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">2.44<sup>&#42;&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.55)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.71)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.68)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">netCN</td>
<td style="padding-left: 5px;padding-right: 5px;">0.18<sup>&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.15</td>
<td style="padding-left: 5px;padding-right: 5px;">0.17<sup>&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.08)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.10)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.10)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">LiReDist</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.43<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">-0.39<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">-0.40<sup>&#42;&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.08)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.10)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.10)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">cot:RelSv</td>
<td style="padding-left: 5px;padding-right: 5px;">1.08<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.70<sup>&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.59</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.33)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.42)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.43)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">SocMe</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.03</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.06</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.16)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.16)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">IMEP_net</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">0.98<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.21)</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">IMEP_ptn</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">0.80</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.66)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">IMEP_parTRUE</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">1.85<sup>&#42;&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.67)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">IMEP_friTRUE</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">1.64<sup>&#42;&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.53)</td>
</tr>
<tr style="border-top: 1px solid #000000;">
<td style="padding-left: 5px;padding-right: 5px;">R<sup>2</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.41</td>
<td style="padding-left: 5px;padding-right: 5px;">0.54</td>
<td style="padding-left: 5px;padding-right: 5px;">0.54</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">Adj. R<sup>2</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.39</td>
<td style="padding-left: 5px;padding-right: 5px;">0.49</td>
<td style="padding-left: 5px;padding-right: 5px;">0.49</td>
</tr>
<tr style="border-bottom: 2px solid #000000;">
<td style="padding-left: 5px;padding-right: 5px;">Num. obs.</td>
<td style="padding-left: 5px;padding-right: 5px;">251</td>
<td style="padding-left: 5px;padding-right: 5px;">142</td>
<td style="padding-left: 5px;padding-right: 5px;">148</td>
</tr>
</tbody>
<tfoot>
<tr>
<td style="font-size: 0.8em;" colspan="4"><sup>&#42;&#42;&#42;</sup>p &lt; 0.01; <sup>&#42;&#42;</sup>p &lt; 0.05; <sup>&#42;</sup>p &lt; 0.1</td>
</tr>
</tfoot>
</table>

